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Abscissa
(noun)

The horizontal coordinate of a point in a two-dimensional Cartesian coordinate system.

### Origin:

The word "abscissa" is a noun that refers to the horizontal coordinate of a point in a two-dimensional cartesian coordinate system. it is derived from the latin word "abscissus" which means "cut off" and refers to the geometric concept of cutting a point off a curve or line.

### Examples:

- The point on the graph with an abscissa of 3 and an ordinate of 4 is located three units to the right and four units up from the origin.
- The abscissa of a point on a graph represents its position along the x-axis.
- The line of best fit has an equation of y = mx + b, where m is the slope of the line and b is the y-intercept, which is the point at which the line crosses the y-axis, with an abscissa of 0.
- In the graph, the abscissa is the horizontal axis and the ordinate is the vertical axis.
- The abscissa is used to locate a point in a two-dimensional space, in relation to the x-axis.